Fast drying nail enamel composition and method

ABSTRACT

A nail enamel based on a solvent mixture of nitrocellulose, and plasticizer(s) is made faster drying by incorporating a particular class of vinyl-silicone copolymers. Trapping of bubbles in the dried enamel is avoided by incorporating a dimethicone anti-foaming agent.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to the field of enamel coating compositions forapplication to human nails. More particularly, this composition relatesto a nail enamel composition which is quick drying.

2. Discussion of the Prior Art

There have been many attempts to shorten the time required to apply nailenamel and allow the enamel to dry at and below the surface so that theuser is not impeded from going about her normal business without risk ofsmudging, streaking, marring, smearing or, indeed, transferring theenamel to clothing, etc. Furthermore, such quick drying must not be atthe expense of wearing properties, gloss, hardness or washability.Suitably 1-4 minutes is considered to be a desirable fast drying time.

While several of these attempts, usually based on such factors assolvent system, curing system, or film-forming resin system, have metwith limited success, Still further improvements are desired forreduction in drying time and quality of the dried enamel.

Accordingly, it is an object of the invention to provide a fast dryingnail polish enamel which is capable of effectively drying in a veryshort time.

SUMMARY OF THE INVENTION

In an effort to achieve the above stated object an attempt was made toincorporate in an appropriate fast drying nail enamel base formula avinyl-silicone copolymer which had been described as able to produce acontinuous film immediately upon application. This vinyl-siliconecopolymer is described, for example, in U.S. Pat. No. 5,032,460 toKanter, et al., and assigned to Minnesota Mining and ManufacturingCompany (3M) and in 3M's published International Application WO93/23009. It was found that when a vinyl-silicone copolymer according tothese 3M patent documents was added to a nail enamel compositionincluding a nitrocellulose film former and other secondary film formingagents the drying time was reduced. Moreover, adding a non-polarhydrocarbon solvent to the formulation may allow the vinyl-siliconcopolymer to come to the surface faster and further enhance the fastdrying effect.

However, it was consistently found that when the fast drying enamelcomposition was applied to nails severe bubbling occurred. The bubblingresults in non-uniformities in the dried enamel coating which soadversely effect the appearance that the product was not commerciallyviable or useful.

Accordingly, attempts were made to overcome the bubbling phenomenon byincorporating commercially available anti-foaming agents into thecomposition. While some products were found which reduced the bubblingsome bubbling still occurred or large amounts of anti-foaming agent wasrequired.

The present invention is, therefore, based on the discovery that a fastdrying and non-bubbling nail enamel coating which is based on theincorporation of a fast drying vinyl-silicone copolymer resin into anitrocellulose-based nail enamel composition is provided by furtheradding to the composition a minor amount of a polydimethylsiloxane(dimethicone) antifoaming agent having a viscosity in the range of about200 to 500 centistokes (cSt).

Accordingly, in its broadest aspect the present invention provides afast drying non-bubbling nail enamel composition which includes asolvent solution of a plasticized film-forming cellulose derivative;vinyl-silicone graft or block copolymer comprising a silicone polymersegment and a vinyl polymer segment; and dimethicone anti-foaming agent.

DETAILED DESCRIPTION OF THE INVENTION AND PREFERRED EMBODIMENTS

As used herein the term "dry" as applied to fast drying refers tothroughout the thickness of the applied coating and not merely to thesurface. That is, it is not considered sufficient for the enamel coatingto feel "dry to the touch" while retaining solvent in lower layers. Such"dry to the touch" coatings are still subject to damage or marring whenthe coated nail brushes up against a hard surface.

Also, the fast dry nail enamel compositions of this invention may beformulated to provide a clear or transparent hard, glossy enamel coatingor may include pigment or other coloring agent to provide a coloredhard, glossy enamel coating. The clear or transparent coating may beand, preferably is, applied directly to the nails but may also beapplied over a previously applied coating of a colored nail polish. Thecolored nail enamel is intended to be applied directly to the nails anddoes not require any other under- or over-coating.

The compositions of this invention include the following essentialcomponents typically found in nail enamel compositions: solvents;film-forming agents; plasticizer(s) for the film-forming agents;thickener(s) or thixotropic agent(s) to impart sufficient viscosity sothat the composition may be easily applied to the nails but not run-offregardless of the position of the nails. The composition may alsoinclude one or more additional additives for functional or aestheticattributes, such as, for example, pigments and other coloring agents,preservatives and perfumes.

The compositions of this invention are, however, particularlycharacterized by the combination of the fast drying vinyl-silicone graftor block copolymer to be described below; and dimethicone anti-foamingagent to effectively prevent bubbling during drying of the enamelcoating. These various essential and preferred ingredients will now bedescribed.

The vinyl-silicone graft or block copolymer, which is described indetail in 3M's U.S. Pat. No. 5,032,460 and WO 93/23009, the disclosuresof which are incorporated herein in their entirety by reference thereto,has the following general formula: ##STR1## wherein G₅ representmonovalent moieties which can independently be the same or differentselected from the group consisting of alkyl, aryl, alkaryl, alkoxy,alkylamino; fluoroalkyl, hydrogen, and --ZSA; A represents a vinylpolymeric segment consisting essentially of polymerized free radicallypolymerizable monomer and Z is a divalent linking group. Useful divalentlinking groups Z include but are not limited to the following: C₁ to C₁₀alkylene, alkarylene, arylene, and alkoxyalkylene. Preferably, Z isselected from methylene and propylene for reasons of commercialavailability.

G₆ represents monovalent moieties which can independently be the same ordifferent selected from the group consisting of alkyl, aryl, alkaryl,alkoxy, alkylamino, fluoroalkyl, hydrogen and --ZSA;

G₂ comprises A;

G₄ comprises A;

R₁ represents monovalent moieties which can independently be the same ordifferent and are selected from alkyl, aryl, alkaryl, alkoxy alkylamino,fluoroalkyl, hydrogen, and hydroxyl. Preferably, R₁ representsmonovalent moieties which can independently be the same or differentselected from C₁₋₄ alkyl and hydroxyl for reasons of commercialavailability. Most preferably, R₁ is methyl.

R₂ can independently be the same or different and represents divalentlinking groups. Suitable divalent linking groups include but are notlimited to the following: C₁ to C₁₀ alkylene, arylene, alkarylene, andalkoxyalkylene. Preferably, R₂ is selected from C₁₋₃ alkylene and C₇₋₁₀alkarylene due to ease of synthesis of the compound. Most preferably, R₂is selected from --CH₂ --, 1,3-propylene, and ##STR2##

R₃ represents monovalent moieties which can independently be the same ordifferent and are selected from alkyl, aryl, alkaryl, alkoxy,alkylamino, fluoroalkyl, hydrogen, and hydroxyl. Preferably R₃represents monovalent moieties which can independently be the same ordifferent C₁₋₄ alkyl and hydroxyl for reasons of commercialavailability. Most preferably, R₃ is methyl.

R₄ can independently be the same or different divalent linking groups.Suitable divalent linking groups include but are not limited to thefollowing: C₁ to C₁₀ alkylene, arylene, alkarylene and alkoxyalkylene.Preferably, R₄ is selected from C₁₋₃ alkylene and C₇₋₁₀ alkarylene forreasons of ease of synthesis. Most preferably, R₄ is selected from --CH₂--, 1,3-propylene, and ##STR3##

x is an integer of 0-3;

y is an integer of 5 or greater; preferably, y is an integer rangingfrom about 10 to about 270 in order to provide the silicone segment witha molecular weight ranging from about 750 to about 20,000. Mostpreferably, y is an integer ranging from about 40 to about 270;

q is an integer of 0-3.

Furthermore, at least one of the following is true;

q is an integer of at least 1;

x is an integer of at least 1;

G₅ comprises at least one --ZSA moiety;

G₆ comprises at least one --ZSA moiety.

For further details on these copolymers, including each of the vinylpolymeric segments and silicone polymeric segments, the reactantstherefore, and the polymerization techniques, reference is made to theaforementioned patent documents to 3M, which are incorporated herein byreference. It should be noted, in particular, that WO 93/23009 on pages29-31 recognize that a cosmetic composition prepared by dissolving thevinyl-silicone copolymer into a low-boiling point oil or volatilesolvent produce a cosmetic film exhibiting superior water-resistance,oil-resistance, and may be applied to nails, such as a nail enamel. Thelow-boiling point oil may be a volatile hydrocarbon oil having a boilingpoint below 260° C., at normal pressure. The volatile solvent may belinear, cyclic, or branched silicone oil having a boiling point below260° C. at normal pressure and a viscosity below 10 cSt. It is furthermentioned that hard films can be produced by introducing a large amountof monomers such as methylmethacrylate, t-butyl(meth)acrylate,isobutylmethacrylate, etc. into acrylic chains. The amount of copolymerin the disclosed film-forming cosmetic composition is from 0.03 to 70%by weight; and, conversely, from 99.97 to 30% by weight of volatilesolvent.

In the present invention the vinyl-silicone copolymer is incorporatedinto the composition in a range of about 0.1 to 5% by weight, preferably0.25 to 2.0% by weight, and most preferably 0.5 to 1.0% by weight.

A volatile non-polar aliphatic hydrocarbon solvent, such as heptane, maybe included in the composition of this invention in order to promote therapid drying of the composition. Although not wishing to be bound by anytheory of operation, it is believed that as the other solventsevaporate, the non-polar hydrocarbon promotes the migration of thevinyl-silicone copolymer to the surface of the enamel coating to enhancethe fast dry effect.

The amount of the particular non-polar aliphatic hydrocarbon solventmay, to promote more rapid drying, be readily determined by routineexperimentation. In general, however, amounts in the range of from about1 to 30%, preferably 5 to 20%, by weight of the composition will produceuseful results.

The heptane solvent (or other volatile non-polar hydrocarbon solvent) isused in conjunction with one or more additional solvents conventionallyused in nail enamel compositions and, particularly, the fast drying nailenamel compositions, as well known in the art. The particular solventswill be selected in view of the film forming resins present in thecomposition and in consideration of the desired drying time.

As examples of suitable solvents mention may be made of, for example,such low boiling solvents as acetone, ethyl acetate, methyl acetate,ethanol, isopropanol, n-butanol, propylacetate, n-butylacetate,amylacetate, and other esters, methychloroform, methylene chloride,methylethylketone and other ketones, diethyl ether, tetrahydrofuran,1,4-dioxane and other ethers. Individual ones or mixtures of thesesolvents may be readily selected in varying weight proportions accordingto need. Also, although generally less preferred higher boilingsolvents, for example, cellosolve, butylcellosolve acetate, cellosolveacetate, methyl cellosolve acetate, butyl cellosolve, ethyl cellosolve,and the like, may be included in the solvent mixture, in amounts whichdo not impede the fast drying property of the composition.

The amount of solvent, including solvent mixtures, other than heptane orother hydrocarbon solvent as set forth above, required to assure bothfast drying and acceptable product viscosity (i.e., ease of applyingwithout running) will, of course, depend on the nature of the solventand the nature and amounts of the other ingredients, such as, inparticular resin and other film forming ingredients, thickeners, solids,etc. Usually, however, amounts of solvent(s) suitable for the purpose ofthis invention will fall within the range of from about 20 to 70% byweight of the composition, preferably, from about 30 to 60% by weight ofthe composition. It is understood that a portion or even all of thesolvents may be incorporated into the enamel composition as solventsolutions of one or more of the non-solvent ingredients, such as, inparticular, a solvent solution of nitrocellulose, color solution, etc.Also, the total amount of solvents including heptane or otherhydrocarbon solvent should, generally, fall in the range of from about25% to 90%, preferably from about 35% to 85%, based on the total weightof the composition.

Nitrocellulose is the preferred primary film-forming polymer material inthe fast drying nail enamel composition of this invention because of itsready availability and its ability to impact hardness, toughness,resistance to abrasion and ability to release solvent. Suitable examplesof nitrocellulose, which are all readily commercially available, includenitrocellulose RS 1/4 sec., nitrocellulose RS 1/2 sec., nitrocelluloseSS 1/4 sec., nitrocellulose SS 1/2 sec., nitrocellulose HIG 1/4 sec.,nitrocellulose HIG 1/2 sec., and nitrocellulose SL-1. The amount ofnitrocellulose will typically fall within the range of from about 1.0 to25% by weight, preferably 3 or 5 to 20% by weight, based on the totalcomposition.

Other primary film-forming polymers which can contribute the necessaryhardness, toughness, abrasion resistance and solvent releasecharacteristics may be used in place of some or all of thenitrocellulose film former. Examples of such film-forming polymersinclude cellulose derivatives, such as, for example, methyl cellulose,ethyl cellulose, propyl cellulose, butyl cellulose, cellulose phthalate,cellulose acetate propionate, cellulose acetate butyrate, celluloseacetate, hydroxypropyl cellulose, and the like.

The compositions also include a secondary film-forming resin componentin order to strengthen the primary film forming component and providethe enamel coating with acceptable gloss and adhesion characteristics.Examples of suitable secondary film-forming polymers are the vinylpolymers such as polyvinyl acetates and butyrates, vinyl chloride/vinylacetate copolymers, as well as a number of methacrylate and acrylatetype polymers and polyester resins. Mention may also be made ofarylsulfonamide-formaldehyde resins which have also been used for thispurpose, for example, toluene sulfonamide-formaldehyde resin.

The amount of the secondary film-former may be readily determined byroutine experimentation depending on the desired characteristics, e.g.gloss, in the final enamel. Generally, however, amounts within the rangeof from about 2 to 15%, preferably from about 4 to 10% by weight, basedon the total composition will provide acceptable results.

A plasticizer or mixture of plasticizers will generally also be includedin the nail enamel composition as is customary in the art in order tosoften and impart flexibility to the resulting film.

A particularly preferred plasticizer for use in this invention isdibutyl phthalate (DBP) which may be added in amounts ranging from about1 to 10% by weight, preferably 2 to 8% by weight, especially from about3 to 5% by weight, based on the total composition.

One or more additional conventional plasticizers usually used togetherwith the nitrocellulose film-former may also be used in combination withthe DBP plasticizer. Examples of such plasticizers include camphor,sucrose acetate isobutyrate, triphenyl phosphate, tricresyl phthalate,butyl phthalate, butyl glycolate, dioctyl phthalate, dibutoxy ethylphthalate, castor oil, benzyl benzoate, tributyl phosphate, butyl acetylricinoleate, butyl stearate, triethyl citrate, dibutyl tartarate,diamylphthalate, and the like. Camphor, triphenyl phosphate and dibutylphthalate, alone or in admixture, are preferred. Amounts of theadditional plasticizers will generally range from about 1 to 12% byweight, preferably 2 to 10% by weight, based on the total composition.

Compositions based on the above ingredients, namely, solvent(s), primaryand secondary film-forming polymers and resins, plasticizers, andvinyl-silicone copolymer, form fast drying nail enamels. However,although not intending to be bound by any theory of operation, butpresumably due to trapping of solvent molecules, migrating out of thefilm-forming polymer(s), being trapped just under the surface of theenamel which top surface layer dries most rapidly, bubbles form in thedried enamel coating to ruin the appearance of the coated nails.

Although, as shown in the examples that follow, some commercial antifoamagents are somewhat effective in reducing the bubbling problem, theproblem is not eliminated. However, it has been discovered that verysmall amounts of dimethicone (polydimethylsiloxane) anti-foaming agent,such as the commercially available product DC 200 Fluid (350 cSt) iseffective in substantially totally eliminating bubble formation.

Suitable antifoaming agents, therefore, include liquidpolydimethylsiloxane having a viscosity in the range of from about 200to 500 cSt, preferably from about 300 to 400 cSt. These antifoamingagents are effective in minor amounts, usually less than about 0.3% byweight, such as from about 0.02 to 0.3%, preferably from about 0.06 to0.20%, by weight, based on the total composition.

The nail enamel compositions may additionally include any of the usualadjuvant ingredients commonly added to nail enamels, in amounts which donot impair the fast drying properties. For instance, mention may be madeof coloring agents, such as pigments, dyestuffs, pearlescent agents andthe like; thixotropic agents; fillers; perfumes, preservatives (such asmicrobicides) antioxidants), UV inhibitors or absorbers, e.g.etocrylene, levelling agents, and the like.

Coloring agents are common nail polish additives to provide cosmeticallyacceptable shades and to opacify the films.

Pigments for use in the present invention include for example redpigments, including for example, D & C red No. 7, D & C red No. 30, D &C red No. 34. Other pigments which may be used in compositions accordingto the present invention include the Lake pigments, for example, D & Cyellow No. 5 Lake, D & C red No. 6 Lake, D & C red No. 7 Lake, D & C redNo. 34 Lake, D & C Red No. 2 Lake, and Ext. D & C Red No. 2 Lake. Inaddition to the above-named pigments, additional pigments can includecosmetic-grade or purified titanium dioxide (white), mica, bismuthoxychloride, yellow and red iron oxides, iron blue, iron oxide black,ultramarine blue, chromide oxide greens, ferric ammonium ferrocyanide,carbon black or lampblack (generally, in minute quantities).

In addition to the above-named pigments, iridescent additives may beincluded for example, "pearl essence", such as a suspension ofcrystalline guanine in nitrocellulose and solvents as well as otheradditives which will affect the appearance of the pigment. Although theamount of pigment in compositions of the present invention will vary asa function of the type of pigment and other components included in thecomposition, in general, pigments are included in an amount ranging fromabout 0.025 to about 4.0% by weight and preferably in an amount rangingfrom about, 0.5 to about 1% by weight of the composition.

When pigments are included in compositions according to the presentinvention, it is useful to include a thixotropic agent for enhancing thesuspension of pigment in the other components of the composition.Although a number of thixotropic agents generally used in the nailenamel art may be used to produce compositions according to the presentinvention, preferred thixotropic agents include the thixotropic clays,especially stearalkonium hectorites and stearalkonium bentonites. Inparticularly preferred compositions according to the present invention,thixotropic agent is included in an amount sufficient to produce a gel,preferably a colloidal gel. In general, the pure thixotropic agentwithout the additives, is included in amounts ranging from about 2% toabout 5% by weight of the composition, preferably about 2 to about 4%and most preferably about 2 to 3% by weight of the composition.

In a particularly preferred embodiment of the invention a finely ground(about 5 microns) thixotropic agent (clay) is provided as suspension ina base mixture which additionally includes a solvent solution ofplasticizer (camphor) and nitrocellulose. UV inhibitor, e.g.,benzophenone, may also be is also present in the base mixture.

The fast drying nail enamel composition may be readily prepared bycombining the base mixture with the plasticizer, e.g. dibutyl phthlate,the vinyl-silicone copolymer, optional hydrocarbon solvent, e.g.heptane, coloring agents, and anti-foaming dimethicone additive, as wellas any other optional additives, in any suitable mixing apparatus as iswell known in the art.

REFERENCE EXAMPLE

The following composition was prepared by mixing the followingingredients until homogeneous. While vigorously agitating the BaseMixture the vinyl silicone copolymer is added slowly to avoid lumping.The mixture is stirred until the copolymer is completely dissolved inthe Base Mixture to ensure homogeneity.

    ______________________________________                                                            (weight %)                                                ______________________________________                                        Base Mixture (solvents, heptane,                                                                    99.5                                                    nitrocellulose, clay, camphor, DBP,                                           TPP, UV inhibitor) provided by                                                Kirker Enterprises, Paterson, NJ                                              vinyl-silicone copolymer (Polymer VS-80,                                                            0.5                                                     from 3M Co.)                                                                  ______________________________________                                    

When the above formulation was applied to fingernails (previouslycleaned and dried) the resulting enamel coating was allowed to dry for10 minutes (no residual tack), however severe bubbling was observed tototally impair the usefulness of the product.

EXAMPLE 1

The following commercially available antifoam agents were added invarying amounts to the above formulation (by mixing the appropriateamount of antifoam agent into the formulation for at least 15 minutes)and reapplied to previously cleaned and dried fingernails under the sameconditions used in the above test. The results are shown in thefollowing Table.

    ______________________________________                                        ANTIBUBBLING ADDITIVE PERFORMANCE SUMMARY                                     Additive         Concentration                                                                            Result.sup.a                                      ______________________________________                                        Surfynol 104PA     1%       2                                                 Permethyl 99A    1          2                                                 Permethyl 97A    1          1                                                 Shell Sol        1          0 (worse)                                         Butyl Alcohol    1          0 (worse)                                         Dapro U-99       1          0                                                 Dapro S-65       1          0                                                 Byketol WS       2          0                                                 Byketol OK       2          0                                                 BYK 396           0.04      0                                                 BYK 396          0.1        2                                                 BYK 322          0.3        0                                                 BYK 325          0.5        0                                                 Dehydran ARA-7219                                                                              1          0                                                 Perenol F-4-HN   2          1                                                 Surfynol DF-37   0.5        2                                                 Surfynol DF-58   0.5        1                                                 Dipropylene Glycol                                                            Methy1 Ether     1          2                                                 Gamma Butyrolactone                                                                            1          1                                                 Tego Wet KL      1          0                                                 Trivent DIA      1          0                                                 Antifoam A       1          3                                                 (dimethicone)                                                                 Dow Corning 200   0.25      3                                                 Fluid/350 cSt                                                                 Dow Corning 344  1          2                                                 Fluid                                                                         DC 200/Per. 99A  0.25/1     3                                                 DC 200/Surf. 104PA                                                                             0.25/1     2                                                 Surf. 104PA/DF-37                                                                              1/0.5      2                                                 Surf. 104PA/DF-58                                                                              1/0.5      1                                                 Isobutyl Isobutyrate                                                                           1          1                                                 2-Ethyl Hexyl Acetate                                                                          1          3                                                 Diisobutyl Ketone                                                                              1          2                                                 Dehydran 1620    0.5        1                                                 Dehydran 1513    0.5        1                                                 DC 200/0.65 cSt  1          3                                                 DC 200/350       0.1        3                                                 ______________________________________                                         .sup.a Results were classified as follows:                                    0  No effect                                                                  1  Slight reduction in bubbling                                               2  Reduction in bubbling                                                      3  Significant reduction in bubbling                                     

EXAMPLE 2

The following fast-drying, non-bubbling pigmented nail enamelformulation is prepared:

    ______________________________________                                                            parts by weight                                           ______________________________________                                        Ethyl acetate         30.5                                                    Butyl acetate         25.0                                                    Isopropyl alcohol     5.0                                                     Nitrocellulose        18.0                                                    Polyester film-forming resin                                                                        9.0                                                     Camphor               1.0                                                     Dibutylphthalate      5.0                                                     Benzophenone-1        0.5                                                     Vinyl-Silicone fast dry copolymer VS-80                                                             0.8                                                     Stearalkonium hectorite                                                                             2.0                                                     Pigments              3.0                                                     Dow Corning 200/350 antifoam                                                                        0.2                                                     ______________________________________                                    

What is claimed is:
 1. A fast drying nail enamel compositioncomprising(A) a base mixture comprising (1) solvent, (2) from about 1 to12 wt. % plasticizer and (3) from about 1 to 25 wt. % nitrocellulose;(B) from about 0.1 to 5 wt. % of a vinyl-silicone copolymer of theformula ##STR4## wherein G₅ represent monovalent moieties which canindependently be the same or different selected from the groupconsisting of alkyl, aryl, alkaryl, alkoxy, alkylamino, fluoroalkyl,hydrogen and --ZSA; A represents a vinyl polymeric segment consisting ofpolymerized vinyl monomer, Z is a divalent linking group selected fromthe group consisting of alkylene, alkarylene, arylene andalkoxyalkylene, G₆ represents monovalent moieties which canindependently be the same or different selected from the groupconsisting of alkyl, aryl, alkaryl, alkoxy, alkylamino, fluoroalkyl;hydrogen, and --ZSA; G₂ comprises A; G₄ comprises A; R₁ representsmonovalent moieties which can independently be the same or different andare selected from the group consisting of alkyl, aryl, alkaryl, alkoxy,alkylamino, fluoroalkyl, hydrogen, and hydroxyl; R₂ can independently bethe same or different and represents divalent linking groups selectedfrom the group consisting of alkylene, alkarylene, arylene andalkoxyalkylene; R₃ represents monovalent moieties which canindependently be the same or different and are selected from the groupconsisting of alkyl, aryl, alkaryl, alkoxy, alkylamino, fluoroalkyl,hydrogen, and hydroxyl; R₄ can independently be the same or differentand are divalent linking groups selected from the group consisting ofalkylene, alkarylene, arylene and alkoxyalkylene; x is an integer of0-3; y is an integer of 5 or greater; q is an integer of 0-3;wherein atleast one of the following is true: q is an integer of at least 1; x isan integer of at least 1; G₅ comprises at least one --ZSA moiety; and G₆comprises at least one --ZSA moiety; and(C) an anti-bubbling effectiveamount of dimethicone fluid having a viscosity in the range of from 200to 500 cSt.
 2. The composition of claim 1 comprising(A) (1) from about20 to 70 wt. % solvent; (2) from about 1 to 12 wt. % plasticizer; (3)from about 1 to 25 wt. % nitrocellulose; (B) from about 0.1 to 5 wt. %vinyl-silicone copolymer; (C) from about 0.02 to 0.3 wt. % dimethiconefluid.
 3. The composition of claim 1 comprising(A) (1) from about 25 to90 wt. % solvent, wherein said solvent is a mixture comprising fromabout 5 to 20 wt. %, based on the total composition, of heptane; (2)from about 0.1 to 12 wt. % plasticizer comprising dibutyl phthalate,camphor, or triphenylphosphate or mixtures of two or more thereof; (3)from about 0.1 to 25 wt. % nitrocellulose; (B) from about 0.1 to 5 wt. %vinyl-silicone copolymer; (C) from about 0.02 to 0.3 wt. % dimethiconefluid.
 4. The fast drying nail enamel composition of claim 1 wherein thedimethicone fluid anti-bubbling agent (C) has a viscosity in the rangeof from about 300 to 400 cSt.
 5. The fast drying nail enamel compositionof claim 4 wherein the amount of the dimethicone fluid anti-bubblingagent (C) is from about 0.02 to 0.3 wt. % of the composition.
 6. Thefast drying nail enamel composition of claim 4 wherein the amount of thedimethicone fluid anti-bubbling agent (C) is from about 0.06 to 0.20 wt.% of the composition.
 7. The fast drying nail enamel composition ofclaim 1 wherein the amount of the dimethicone fluid anti-bubbling agent(C) is from about 0.02 to 0.3 wt. % of the composition.
 8. The fastdrying nail enamel composition of claim 1 wherein the amount of thedimethicone fluid anti-bubbling agent (C) is from about 0.06 to 0.2 wt.% of the composition.